Title

Liquid Evaporation

Problem Scenario

I want to know which liquid will evaporate the fastest if you put it in a freezer 10 minutes before starting.

Broad Question

Which liquid will evaporate the fastest?

Specific Question

Which liquid, water, salt water, rubbing alcohol, vegetable oil, and soda, will evaporate the fastest in room temperatures if you put them in the freezer for 10 minutes before?

Hypothesis

When I begin to evaporate the different liquids, I believe salt water will evaporate the quickest in the sunlight. Then I think the water will be second, then alcohol rubbing, and then soda and vegetable oil.

Graph of Hypothesis

Variables

Independent Variable: types of liquid

Dependent Variable: time it takes to evaporate

Variables That Need To Be Controlled:

sunlight, room temperature, container, and amount of liquid.

Vocabulary List That Needs Explanation

evaporation: the process of becoming a vapor.
liquid: something that takes the shape of an object and is very wet.

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General Plan

I am going to put five different liquids in 5 different containers and watch them for 3 or 2 days to see which liquid evaporates the quickest. This means I will leave them in sunlight and check on them every hour in the night and day.

Potential Problems And Solutions

The rubbing alcohol could be spilt and get in cuts or make it into the mouth of a human being. The vegetable oil could be poured out by a family members not realizing its a science expiroment.

Safety Or Environmental Concerns

Do not put any of these substances in or near your nose or mouth.
Should not be put in fridge or freezer.
Do not pour it out into the ground outside.

Experimental Design

What is your experimental unit?

I am measuring liquid

Number Of Trials:

I will be doing 5 trials for each liquid.

Number Of Subjects In Each trial:

I will be using 5 different liquids, rubbing alcohol, water, salt water, soda ( coca cola) and vegetable oil.

Number of Observations:

I will be doing a different observation for each liquid

When data will be collected:

I will collect data the 8th of February till the 10th of February.

Where will data be collected?:

My data will be collected in a journal at home.

Resources and Budget Table

Item	Number needed	Where I will get this	Cost
	rubbing alcohol	CVS	2.19
	soda	Hannaford	3.99
	vegetable oil	Hannaford	4.29
	salt	Hannaford	2.99
	poster board	Staples	6.99

Detailed Procedure

1. Get water, salt water, soda, vegetable oil, and rubbing alcohol.
2. Put each liquid in separate containers. (59.1471 milliliters of each)
3. Place each container with the liquids on a windowsill in sunlight.
4. Check every 5 hours for 14 days to see which ones evaporate.
5. Record observations and results in a journal.

Diagram

Photo List

Time Line

I will start my project the 16th of February threw to the first of March around 3 P.M.

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Data Table

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Data Analysis

All Raw Data

Graphs

Photos

Results

The results for liquid evaporation was that the rubbing alcohol evaporated first followed by Coca Cola and then salt water and water and finally, vegetable oil never evaporated. Most of my hypothesis was incorrect.

Conclusion

In conclusion, not all the liquids evaporated. The rubbing alcohol evaporated first within six days. after nine days, the coca cola had turned into a sticky mess, but had no liquid left meaning it had evaporated. Then after twelve days passed from day one, Salt water had evaporated only leaving salt crystals behind. Water evaporated after seventeen days. The vegetable oil never evaporated within the eighteen days I tested for. I doubt it would ever evaporate because it is an oil.

Discussion

Benefit to Community and/or Science

Background Research

Rubbing Alcohol: Denatured alcohol, typically perfumed, used as an antiseptic or in massage.
Water:A colorless, transparent, odorless, tasteless liquid that forms the seas, lakes, rivers, and rain.
Salt Water: Relating to water, but adding salt, a white crystalline substance that gives seawater its characteristic taste and is used for seasoning or preserving.
Vegetable Oil: An oil derived from plants
Soda: Carbonated water
Coca Cola:A liquid beverage that is carbonated and can be caffeinated, but is not always. Originally meant to be a medicine.
Coca Cola Company: a registered trademark of The Coca-Cola Company in the United States since March 27, 1944.

References

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